Roof-flashing insert.



W. A. & F. G. WITTBECKER ROOF FLASHING INSERT.

APPLICATION FILED P23111912 1,091,611. Patented Mar. 31, 1914 Mai W mzv zw unirno srarns PATENT OFFICE.

WILLIAM A. WIT'IBECKER AND FRANK G. WITTBECKER, OF ST. PAUL, MINNESOTA.

ROOF-FLASHING INSERT.

Specification of Letters Patent.

Patented Mar. 31, 19! 4.

Application filed February 19, 1912. Serial No. 678,648.

I all who/.1 if may (VT/'tflf'ill lic it known that we, W'nalnn A. \VITT- lllit'Kl-IR and l naxn (l. \Yrrrnrennu. citizens of the l'nited States. residing at St. Paul, in the county of Ramsey and State of Minnesota. have invented a new and useful ImproYeluent in Roof-Flashing Inserts, of which the following is a specification.

This invention has for its object the produrtion ot' a device for use in building struc tures which adapttal to produce a ght joint for flashing betwecnthe root of a building and an adja ent wall.

' in the construction of roots it has hereto- ]5 fore been ditiieult to produce a water proof 'ioint where the roof is built contiguous to it wall rising;- above the root or around chinr new and it is a purpo e of this invention to provide a simple and etl'eetive, device which is adapted to assist in producing an absolutely water tight joint and which is easy and incxpensiw? to apply in use.

This invention particularly adapted for use in concrete, cement. brick and stone walls although it i not confined to this use alone. After it. has been applied the flashing oil a roof may be connettcd to itand removed when desired lllllltlltif the device part cularly atilvantae'rous for use because a root can be relai l without injuring the device or requiring" its r mmal.

in the aewaupan -xing drawing forming part ot this spia-itiration. Figure l is a sec tion oi an elevation ot' a detail of a root and wall t-oiiti;'iioi=.-. thereto the latter being rep resen ed as eoa-arurt'etl of cement blocks, our invention being shown applied thereto before the she t metal roof has been laid; Fig. 2 is a se 'tional detail \'it.\' showing the metal root applied to the insert in finished condition and his. i a perspective of a detail oi thc insert bel'ore it used.

reg'ires nts a detail of a ro t which adapted to be covered with sheet metal. tar paper or any other rooting u'iaterial.

ll r presents a porti n of the wall contigu us t oil rising above said roof it being desir d tr construct a water tight joint hel.\\'tt'll said part in which flashing is em- .i-l. in building the. wal ll what we have in: an in ert (1 is placed horizontr lr or i int-d with the, root in the cementniortar or othrr building material between the lJlOCl-LS above the root \l'hen the Wall E is formed of on rete or rementitious ma; terial and molded into a monolithic structure the insert C is placed in position in the wall during; the molding process and the cementitious material allowed to set firmly around the same to hold itin place. Cement mortar between blocks is illustrated and is adapted to set ,in the usual manner sealing theinsert in place.

The insert consists of a strip of material folded along a longitudinal line and bent up 'ardly adjacent said folding line thus forming upper and lower contiguous sides D and E and an upwardly projecting shoulder F at its median portion. The upper side I) is allowed to remain flat while the insert is being applied to the wall and the lower side E has its outer end bent down to form an outer stop G. This device as described is made up in lengths suitable for constructing roofs of any desired dimensions. The insert is laid between the blocks adjoining but above the roof while in the course of erecting the wall B, the device being placed with the shoulder G downward and but-ting closely against the outer surface of the Wall. The insert is laid in the cement mortar and the process of constructing the wall continued upwardly in the ordinary manner. After the mortar has set the inner stop F and the friction between the mortar and the sides of the insert prevent removal or loosening; of the insert. The roofing H made of sheet metal or other suitable material is then laid in the usual manner. its side edge being.

bent upward to form a flashing I or a separate flashing being employed said flashing being inserted between the sides D and E of the insert and bent downwardly over the stop G. After the flashing, has been inserted the projecting end of the upper side D is bent down by hammering or pressing it over the flashing thus forming a drip flange J which prevents any water creeping into the insert and below the roofing material.

When it is desired to remove the flash ing: for the purpose of repairing the roof or to renew an old and leaky roof the drip flange J may be bent up and the flashing withdrawn and a new flashing reinserted. It is obvious that the insert may be variously modified in const uction and that it may be used in connection with concrete, stone. brick or any other form of wall desired when the equivalent of llashingis employed and it is further obvious that the inst-rt, may be made out of any suitable material such as sheet metal or fiber or other material chemically treated. Should the 1 distance the insert is placed in the wall and Weight of the roof above the insert cause the sides of the insert to close and prevent the insertion of the flashing a narrow strip of thin metal the thickness of the sheathing or flashing on the; roof may be temporarily inserted in the insert between its sides during the process of biiilding' waii and then Withdrawn after the material of the wall has set, leaving a spaee between the sides of the insert into which flashing may be easily inserted.

Inaccordance with the patent statnteswe have described the principles of operation of our invention together with the construction which We now consider to represent. the best embodiment thereof but We desire to have it iinderstood that the construction shown is only illustrative and that the invention can be carried out by other means and applied to uses other than those above set forth Within the scope of the following claims.

Having described our invention, What we claim as new and desire to protect by Let-- ters Patent is il. A flashing insert adapted to be sealed in a- Wsll during construction consisting of a strip of material folded aiong a longitudinal line to form contiguous upper and lower sides and adapted to extend the full length of the edge of the dashing, a pair of sides of said strip being bent up adjacent i'he iine of said fold to ."iorm a shoulder at its median portion, said lower side being bent down to 'form astop for defining the said upper side extending in fiat condition beyond the side ofsaid Wall before the edge of the dashing is inserted in said well be tween said sides and adapted to be bent down in position to form a drip flange over said flashing and prevent moisture and Wet entering between the edge of said flashing and the sides of said insert.

2. A flashing insert adapted to be sealed in a Wail during construction consisting of a strip of material folded along a longitudinai line to form contiguous upper and lower sides and adapted to extend the full length of the edge of the flashing, one of said sides being fo'rmed with means for positively engaging the material in the Wall said lower side being bent down to form a stop for defining the distance the insert is placed in the Wall and said upper side extending outwardly from the side of said Wall before the edge of the flashing is placed between said sides and adapted to be bent down in position to form a drip flange over said flashing and prevent moisture and Wet entering between the sides f said insert and passing over the edge of said flashing.

In testimony whereof We ha've'slgned our names to this specification in the presence oi tWo subscribing Witnesses.

WILLIAM A. wnrrnnonnn rnsnn e. WITTBECKEB.

Witnesses:

G. M. Dnnsscn, F. G" Bnsnnnny. 

